Alcatel Carrier Internetworking Solutions 8008 Manuale Utente

Console Interface

2-28

The following figure and table describe STA configuration for ports. 

Max (Message) Age

20

The maximum time (in seconds) a device can wait 

without receiving a configuration message before 

attempting to reconfigure. All device ports (except for 

designated ports) should receive configuration 

messages at regular intervals. Any port that ages out 

STA information (provided in the last configuration 

message) becomes the designated port for the attached 

LAN. If it is a root port, a new root port is selected from 

among the device ports attached to the network.
The minimum value is 

the higher of 6 or [2 x (Hello Time + 1)].
The maximum value is 

the lower of 40 or [2 x (Forward Delay - 1)].

Forward Delay

15

The maximum time (in seconds) the root device will wait 

before changing states (i.e., listening to learning to 

forwarding). This delay is required because every device 

must receive information about topology changes before 

it starts to forward frames. In addition, each port needs 

time to listen for conflicting information that would make 

it return to a blocking state; otherwise, temporary data 

loops might result.
The maximum value is 30. 
The minimum value is 

the higher of 4 or [(Max. Message Age / 2) + 1].

Alcatel OmniStack 8008

< Spanning Tree Port Configuration >

Fast forwarding mode of all ports : [Enable]

[Disable]

Port

Type

Priority

Cost

FastForwarding

-------------------------------------------------------

1

1000SX

128

4

ENABLED

2

1000SX

128

4

ENABLED

3

1000SX

128

4

ENABLED

4

1000SX

128

4

ENABLED

5

1000SX

128

4

ENABLED

6

1000SX

128

4

ENABLED

7

1000SX

128

4

ENABLED

8

1000SX

128

4

ENABLED

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